mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 08:16:49 +07:00
92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
|
/*
|
||
|
|
* linux/arch/m32r/kernel/irq.c
|
||
|
|
*
|
||
|
|
* Copyright (c) 2003, 2004 Hitoshi Yamamoto
|
||
|
|
* Copyright (c) 2004 Hirokazu Takata <takata at linux-m32r.org>
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* linux/arch/i386/kernel/irq.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
|
||
|
|
*
|
||
|
|
* This file contains the lowest level m32r-specific interrupt
|
||
|
|
* entry and irq statistics code. All the remaining irq logic is
|
||
|
|
* done by the generic kernel/irq/ code and in the
|
||
|
|
* m32r-specific irq controller code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel_stat.h>
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/seq_file.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <asm/uaccess.h>
|
||
|
|
|
||
|
|
atomic_t irq_err_count;
|
||
|
|
atomic_t irq_mis_count;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Generic, controller-independent functions:
|
||
|
|
*/
|
||
|
|
|
||
|
|
int show_interrupts(struct seq_file *p, void *v)
|
||
|
|
{
|
||
|
|
int i = *(loff_t *) v, j;
|
||
|
|
struct irqaction * action;
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
if (i == 0) {
|
||
|
|
seq_printf(p, " ");
|
||
|
|
for (j=0; j<NR_CPUS; j++)
|
||
|
|
if (cpu_online(j))
|
||
|
|
seq_printf(p, "CPU%d ",j);
|
||
|
|
seq_putc(p, '\n');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (i < NR_IRQS) {
|
||
|
|
spin_lock_irqsave(&irq_desc[i].lock, flags);
|
||
|
|
action = irq_desc[i].action;
|
||
|
|
if (!action)
|
||
|
|
goto skip;
|
||
|
|
seq_printf(p, "%3d: ",i);
|
||
|
|
#ifndef CONFIG_SMP
|
||
|
|
seq_printf(p, "%10u ", kstat_irqs(i));
|
||
|
|
#else
|
||
|
|
for (j = 0; j < NR_CPUS; j++)
|
||
|
|
if (cpu_online(j))
|
||
|
|
seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
|
||
|
|
#endif
|
||
|
|
seq_printf(p, " %14s", irq_desc[i].handler->typename);
|
||
|
|
seq_printf(p, " %s", action->name);
|
||
|
|
|
||
|
|
for (action=action->next; action; action = action->next)
|
||
|
|
seq_printf(p, ", %s", action->name);
|
||
|
|
|
||
|
|
seq_putc(p, '\n');
|
||
|
|
skip:
|
||
|
|
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
|
||
|
|
} else if (i == NR_IRQS) {
|
||
|
|
seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
|
||
|
|
seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* do_IRQ handles all normal device IRQ's (the special
|
||
|
|
* SMP cross-CPU interrupts have their own specific
|
||
|
|
* handlers).
|
||
|
|
*/
|
||
|
|
asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs)
|
||
|
|
{
|
||
|
|
irq_enter();
|
||
|
|
|
||
|
|
#ifdef CONFIG_DEBUG_STACKOVERFLOW
|
||
|
|
/* FIXME M32R */
|
||
|
|
#endif
|
||
|
|
__do_IRQ(irq, regs);
|
||
|
|
irq_exit();
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|